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Audrina Patridge

And last but not least we have "Hills" alum Audrina Patridge, who dusted off her Debbie Gibson hat and tie-dyed dress for an appearance on the red carpet at the premiere of "Waiting for Lightning." (4/10/2012)

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What Were They Thinking?!

This week's worst-dressed stars include Lana Del Rey, Justin Bieber, and Nicki Minaj. -- By Matt Whitfield, Yahoo! Staff